Answer:
3 ft/s
Explanation:
The rate or speed of the remote control car, v = distance/time
Now, the distance travelled by the remote control car = 4/5 of a foot = 4/5 × 1 ft = 4/5 ft and the time it takes to cover this distance is 4/15 of a second = 4/15 × 1 s = 4/15 s.
So, v = distance/time
= 4/5 ft ÷ 4/15 s
= 4/5 ft × 15/4 s
= 3 ft/s